2022-04-23 03:59:50 -05:00
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// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
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// SPDX-License-Identifier: GPL-2.0-or-later
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2021-05-25 18:32:56 -05:00
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#include <algorithm>
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2022-11-21 10:31:18 -06:00
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#include <sstream>
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2021-05-25 18:32:56 -05:00
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#include <unordered_map>
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#include "common/fs/fs.h"
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#include "common/fs/fs_paths.h"
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#include "common/fs/path_util.h"
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#include "common/logging/log.h"
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#ifdef _WIN32
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#include <shlobj.h> // Used in GetExeDirectory()
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#else
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#include <cstdlib> // Used in Get(Home/Data)Directory()
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#include <pwd.h> // Used in GetHomeDirectory()
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#include <sys/types.h> // Used in GetHomeDirectory()
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#include <unistd.h> // Used in GetDataDirectory()
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#endif
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#ifdef __APPLE__
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#include <sys/param.h> // Used in GetBundleDirectory()
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// CFURL contains __attribute__ directives that gcc does not know how to parse, so we need to just
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// ignore them if we're not using clang. The macro is only used to prevent linking against
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// functions that don't exist on older versions of macOS, and the worst case scenario is a linker
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// error, so this is perfectly safe, just inconvenient.
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#ifndef __clang__
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#define availability(...)
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#endif
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#include <CoreFoundation/CFBundle.h> // Used in GetBundleDirectory()
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#include <CoreFoundation/CFString.h> // Used in GetBundleDirectory()
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#include <CoreFoundation/CFURL.h> // Used in GetBundleDirectory()
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#ifdef availability
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#undef availability
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#endif
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#endif
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#ifndef MAX_PATH
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#ifdef _WIN32
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// This is the maximum number of UTF-16 code units permissible in Windows file paths
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#define MAX_PATH 260
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#else
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// This is the maximum number of UTF-8 code units permissible in all other OSes' file paths
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#define MAX_PATH 1024
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#endif
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#endif
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namespace Common::FS {
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namespace fs = std::filesystem;
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/**
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* The PathManagerImpl is a singleton allowing to manage the mapping of
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* YuzuPath enums to real filesystem paths.
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* This class provides 2 functions: GetYuzuPathImpl and SetYuzuPathImpl.
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* These are used by GetYuzuPath and SetYuzuPath respectively to get or modify
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* the path mapped by the YuzuPath enum.
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*/
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class PathManagerImpl {
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public:
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static PathManagerImpl& GetInstance() {
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static PathManagerImpl path_manager_impl;
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return path_manager_impl;
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}
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PathManagerImpl(const PathManagerImpl&) = delete;
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PathManagerImpl& operator=(const PathManagerImpl&) = delete;
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PathManagerImpl(PathManagerImpl&&) = delete;
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PathManagerImpl& operator=(PathManagerImpl&&) = delete;
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[[nodiscard]] const fs::path& GetYuzuPathImpl(YuzuPath yuzu_path) {
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return yuzu_paths.at(yuzu_path);
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}
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void SetYuzuPathImpl(YuzuPath yuzu_path, const fs::path& new_path) {
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yuzu_paths.insert_or_assign(yuzu_path, new_path);
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}
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private:
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PathManagerImpl() {
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2021-10-11 20:56:25 -05:00
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fs::path yuzu_path;
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fs::path yuzu_path_cache;
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fs::path yuzu_path_config;
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2021-05-25 18:32:56 -05:00
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#ifdef _WIN32
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2021-10-11 20:56:25 -05:00
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yuzu_path = GetExeDirectory() / PORTABLE_DIR;
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2021-05-25 18:32:56 -05:00
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if (!IsDir(yuzu_path)) {
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yuzu_path = GetAppDataRoamingDirectory() / YUZU_DIR;
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}
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2021-10-11 20:56:25 -05:00
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yuzu_path_cache = yuzu_path / CACHE_DIR;
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yuzu_path_config = yuzu_path / CONFIG_DIR;
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2021-05-25 18:32:56 -05:00
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#else
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2021-10-11 20:56:25 -05:00
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yuzu_path = GetCurrentDir() / PORTABLE_DIR;
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2021-05-25 18:32:56 -05:00
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if (Exists(yuzu_path) && IsDir(yuzu_path)) {
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2021-10-11 20:56:25 -05:00
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yuzu_path_cache = yuzu_path / CACHE_DIR;
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yuzu_path_config = yuzu_path / CONFIG_DIR;
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2021-05-25 18:32:56 -05:00
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} else {
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yuzu_path = GetDataDirectory("XDG_DATA_HOME") / YUZU_DIR;
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2021-10-11 20:56:25 -05:00
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yuzu_path_cache = GetDataDirectory("XDG_CACHE_HOME") / YUZU_DIR;
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yuzu_path_config = GetDataDirectory("XDG_CONFIG_HOME") / YUZU_DIR;
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2021-05-25 18:32:56 -05:00
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}
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#endif
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2021-10-11 20:56:25 -05:00
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GenerateYuzuPath(YuzuPath::YuzuDir, yuzu_path);
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GenerateYuzuPath(YuzuPath::CacheDir, yuzu_path_cache);
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GenerateYuzuPath(YuzuPath::ConfigDir, yuzu_path_config);
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2021-05-25 18:32:56 -05:00
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GenerateYuzuPath(YuzuPath::DumpDir, yuzu_path / DUMP_DIR);
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GenerateYuzuPath(YuzuPath::KeysDir, yuzu_path / KEYS_DIR);
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GenerateYuzuPath(YuzuPath::LoadDir, yuzu_path / LOAD_DIR);
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GenerateYuzuPath(YuzuPath::LogDir, yuzu_path / LOG_DIR);
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GenerateYuzuPath(YuzuPath::NANDDir, yuzu_path / NAND_DIR);
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GenerateYuzuPath(YuzuPath::ScreenshotsDir, yuzu_path / SCREENSHOTS_DIR);
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GenerateYuzuPath(YuzuPath::SDMCDir, yuzu_path / SDMC_DIR);
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GenerateYuzuPath(YuzuPath::ShaderDir, yuzu_path / SHADER_DIR);
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2021-06-19 14:38:49 -05:00
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GenerateYuzuPath(YuzuPath::TASDir, yuzu_path / TAS_DIR);
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2021-05-25 18:32:56 -05:00
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}
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~PathManagerImpl() = default;
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void GenerateYuzuPath(YuzuPath yuzu_path, const fs::path& new_path) {
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void(FS::CreateDir(new_path));
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SetYuzuPathImpl(yuzu_path, new_path);
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}
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std::unordered_map<YuzuPath, fs::path> yuzu_paths;
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};
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bool ValidatePath(const fs::path& path) {
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if (path.empty()) {
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LOG_ERROR(Common_Filesystem, "Input path is empty, path={}", PathToUTF8String(path));
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return false;
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}
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#ifdef _WIN32
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if (path.u16string().size() >= MAX_PATH) {
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LOG_ERROR(Common_Filesystem, "Input path is too long, path={}", PathToUTF8String(path));
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return false;
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}
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#else
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if (path.u8string().size() >= MAX_PATH) {
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LOG_ERROR(Common_Filesystem, "Input path is too long, path={}", PathToUTF8String(path));
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return false;
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}
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#endif
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return true;
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}
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fs::path ConcatPath(const fs::path& first, const fs::path& second) {
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const bool second_has_dir_sep = IsDirSeparator(second.u8string().front());
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if (!second_has_dir_sep) {
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return (first / second).lexically_normal();
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}
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fs::path concat_path = first;
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concat_path += second;
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return concat_path.lexically_normal();
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}
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fs::path ConcatPathSafe(const fs::path& base, const fs::path& offset) {
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const auto concatenated_path = ConcatPath(base, offset);
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if (!IsPathSandboxed(base, concatenated_path)) {
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return base;
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}
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return concatenated_path;
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}
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bool IsPathSandboxed(const fs::path& base, const fs::path& path) {
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const auto base_string = RemoveTrailingSeparators(base.lexically_normal()).u8string();
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const auto path_string = RemoveTrailingSeparators(path.lexically_normal()).u8string();
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if (path_string.size() < base_string.size()) {
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return false;
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}
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return base_string.compare(0, base_string.size(), path_string, 0, base_string.size()) == 0;
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}
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bool IsDirSeparator(char character) {
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return character == '/' || character == '\\';
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}
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bool IsDirSeparator(char8_t character) {
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return character == u8'/' || character == u8'\\';
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}
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fs::path RemoveTrailingSeparators(const fs::path& path) {
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if (path.empty()) {
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return path;
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}
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auto string_path = path.u8string();
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while (IsDirSeparator(string_path.back())) {
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string_path.pop_back();
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}
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return fs::path{string_path};
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}
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const fs::path& GetYuzuPath(YuzuPath yuzu_path) {
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return PathManagerImpl::GetInstance().GetYuzuPathImpl(yuzu_path);
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}
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std::string GetYuzuPathString(YuzuPath yuzu_path) {
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return PathToUTF8String(GetYuzuPath(yuzu_path));
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}
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void SetYuzuPath(YuzuPath yuzu_path, const fs::path& new_path) {
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if (!FS::IsDir(new_path)) {
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LOG_ERROR(Common_Filesystem, "Filesystem object at new_path={} is not a directory",
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PathToUTF8String(new_path));
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return;
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}
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PathManagerImpl::GetInstance().SetYuzuPathImpl(yuzu_path, new_path);
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}
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#ifdef _WIN32
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fs::path GetExeDirectory() {
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wchar_t exe_path[MAX_PATH];
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2022-05-26 17:49:18 -05:00
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if (GetModuleFileNameW(nullptr, exe_path, MAX_PATH) == 0) {
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2021-05-25 18:32:56 -05:00
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LOG_ERROR(Common_Filesystem,
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"Failed to get the path to the executable of the current process");
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}
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return fs::path{exe_path}.parent_path();
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}
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fs::path GetAppDataRoamingDirectory() {
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PWSTR appdata_roaming_path = nullptr;
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SHGetKnownFolderPath(FOLDERID_RoamingAppData, 0, nullptr, &appdata_roaming_path);
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auto fs_appdata_roaming_path = fs::path{appdata_roaming_path};
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CoTaskMemFree(appdata_roaming_path);
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if (fs_appdata_roaming_path.empty()) {
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LOG_ERROR(Common_Filesystem, "Failed to get the path to the %APPDATA% directory");
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}
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return fs_appdata_roaming_path;
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}
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#else
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fs::path GetHomeDirectory() {
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const char* home_env_var = getenv("HOME");
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if (home_env_var) {
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return fs::path{home_env_var};
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}
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LOG_INFO(Common_Filesystem,
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"$HOME is not defined in the environment variables, "
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"attempting to query passwd to get the home path of the current user");
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const auto* pw = getpwuid(getuid());
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if (!pw) {
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LOG_ERROR(Common_Filesystem, "Failed to get the home path of the current user");
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return {};
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}
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return fs::path{pw->pw_dir};
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}
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fs::path GetDataDirectory(const std::string& env_name) {
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const char* data_env_var = getenv(env_name.c_str());
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if (data_env_var) {
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return fs::path{data_env_var};
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}
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if (env_name == "XDG_DATA_HOME") {
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return GetHomeDirectory() / ".local/share";
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} else if (env_name == "XDG_CACHE_HOME") {
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return GetHomeDirectory() / ".cache";
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} else if (env_name == "XDG_CONFIG_HOME") {
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return GetHomeDirectory() / ".config";
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}
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return {};
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}
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#endif
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#ifdef __APPLE__
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fs::path GetBundleDirectory() {
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char app_bundle_path[MAXPATHLEN];
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// Get the main bundle for the app
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CFURLRef bundle_ref = CFBundleCopyBundleURL(CFBundleGetMainBundle());
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CFStringRef bundle_path = CFURLCopyFileSystemPath(bundle_ref, kCFURLPOSIXPathStyle);
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CFStringGetFileSystemRepresentation(bundle_path, app_bundle_path, sizeof(app_bundle_path));
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CFRelease(bundle_ref);
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CFRelease(bundle_path);
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return fs::path{app_bundle_path};
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}
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#endif
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// vvvvvvvvvv Deprecated vvvvvvvvvv //
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std::string_view RemoveTrailingSlash(std::string_view path) {
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if (path.empty()) {
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return path;
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}
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if (path.back() == '\\' || path.back() == '/') {
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path.remove_suffix(1);
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return path;
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}
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return path;
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}
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std::vector<std::string> SplitPathComponents(std::string_view filename) {
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std::string copy(filename);
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std::replace(copy.begin(), copy.end(), '\\', '/');
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std::vector<std::string> out;
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std::stringstream stream(copy);
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std::string item;
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while (std::getline(stream, item, '/')) {
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out.push_back(std::move(item));
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}
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return out;
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}
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std::string SanitizePath(std::string_view path_, DirectorySeparator directory_separator) {
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std::string path(path_);
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char type1 = directory_separator == DirectorySeparator::BackwardSlash ? '/' : '\\';
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char type2 = directory_separator == DirectorySeparator::BackwardSlash ? '\\' : '/';
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if (directory_separator == DirectorySeparator::PlatformDefault) {
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#ifdef _WIN32
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type1 = '/';
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type2 = '\\';
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#endif
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}
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std::replace(path.begin(), path.end(), type1, type2);
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auto start = path.begin();
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#ifdef _WIN32
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// allow network paths which start with a double backslash (e.g. \\server\share)
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if (start != path.end())
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|
++start;
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#endif
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path.erase(std::unique(start, path.end(),
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|
[type2](char c1, char c2) { return c1 == type2 && c2 == type2; }),
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|
path.end());
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|
|
return std::string(RemoveTrailingSlash(path));
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}
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|
|
std::string_view GetParentPath(std::string_view path) {
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|
|
|
const auto name_bck_index = path.rfind('\\');
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|
|
|
const auto name_fwd_index = path.rfind('/');
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|
|
|
std::size_t name_index;
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|
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|
|
|
if (name_bck_index == std::string_view::npos || name_fwd_index == std::string_view::npos) {
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|
|
name_index = std::min(name_bck_index, name_fwd_index);
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|
|
} else {
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|
|
|
name_index = std::max(name_bck_index, name_fwd_index);
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|
|
|
}
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|
|
|
|
|
|
|
return path.substr(0, name_index);
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|
|
|
}
|
|
|
|
|
|
|
|
std::string_view GetPathWithoutTop(std::string_view path) {
|
|
|
|
if (path.empty()) {
|
|
|
|
return path;
|
|
|
|
}
|
|
|
|
|
|
|
|
while (path[0] == '\\' || path[0] == '/') {
|
|
|
|
path.remove_prefix(1);
|
|
|
|
if (path.empty()) {
|
|
|
|
return path;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
const auto name_bck_index = path.find('\\');
|
|
|
|
const auto name_fwd_index = path.find('/');
|
|
|
|
return path.substr(std::min(name_bck_index, name_fwd_index) + 1);
|
|
|
|
}
|
|
|
|
|
|
|
|
std::string_view GetFilename(std::string_view path) {
|
|
|
|
const auto name_index = path.find_last_of("\\/");
|
|
|
|
|
|
|
|
if (name_index == std::string_view::npos) {
|
|
|
|
return {};
|
|
|
|
}
|
|
|
|
|
|
|
|
return path.substr(name_index + 1);
|
|
|
|
}
|
|
|
|
|
|
|
|
std::string_view GetExtensionFromFilename(std::string_view name) {
|
|
|
|
const std::size_t index = name.rfind('.');
|
|
|
|
|
|
|
|
if (index == std::string_view::npos) {
|
|
|
|
return {};
|
|
|
|
}
|
|
|
|
|
|
|
|
return name.substr(index + 1);
|
|
|
|
}
|
|
|
|
|
|
|
|
} // namespace Common::FS
|